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  1. /*
  2. * @Author: hungeazy
  3. * @Date:   2026-03-04 23:24:15
  4. * @Last Modified by:   hungeazy
  5. * @Last Modified time: 2026-03-14 22:16:56
  6. */
  7. #include <bits/stdc++.h>
  8. using namespace std;
  9. #define int long long 
  10. const int N = 501;
  11. int n,m;
  12. char s[N][N];
  13.  
  14. signed main()
  15. {
  16.     ios_base::sync_with_stdio(false); 
  17.     cin.tie(NULL); cout.tie(NULL);
  18.     cin >> n >> m;
  19.     for (int i = 1; i <= n; i++)
  20.         for (int j = 1; j <= m; j++) cin >> s[i][j];
  21.     int ans = 0;
  22.     for (int i = 1; i <= n-1; i++)
  23.         for (int j = 1; j <= m-1; j++)
  24.         {
  25.             vector<char> vec;
  26.             vec.push_back(s[i][j]); vec.push_back(s[i][j+1]);
  27.             vec.push_back(s[i+1][j]); vec.push_back(s[i+1][j+1]);
  28.             sort(vec.begin(),vec.end());
  29.             string st = "";
  30.             for (char x : vec) st += x;
  31.             if (st == "acef") ans++;
  32.         }
  33.     cout << ans;
  34.     return 0;
  35. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/60yxpp
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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